MESON Chess Problem Database

Problem Display
PID: 144269 (8/Np2K3/8/r2k4/p1N1p1p1/P1pbB1PB/5P2/1Q6 w - - 0 1)

Kuskop, Friedrich Amandus Leopold

Melbourne Leader, 1909

8/Np2K3/8/r2k4/p1N1p1p1/P1pbB1PB/5P2/1Q6

#2

9 + 8

119 Tidskrift for Schack 1909

SOLUTION

  • SOUND
  • Sets
    • 1...Kxc4
      • 2.Qa2#
    • 1...Rb5
      • 2.Qxb5#
    • 1...Ra6
      • 2.Qb5#
    • 1...Rxa7
      • 2.Qb5#
  • Tries
    • 1.Bxg4?
      • threat
        • 2.Be6#
      • 1...Kxc4
        • 2.Qa2#
      • 1...Rxa7
        • 2.Qb5#
      • 1...Ra6
        • 2.Qb5#
      • 1...Bxc4!
    • 1.Qb6?
      • threat
        • 2.Qd4#
        • 2.Qe6#
      • 1...Rxa7
        • 2.Qc5#
        • 2.Qb5#
        • 2.Qe6#
      • 1...Rc5
        • 2.Qxc5#
        • 2.Qe6#
      • 1...Ra6
        • 2.Qd4#
        • 2.Qc5#
        • 2.Qb5#
      • 1...Kxc4!
  • Keys
    • 1.f4!
      • threat
        • 2.Sb6#
      • 1...Kxc4
        • 2.Qa2#
      • 1...Rxa7
        • 2.Qb5#
      • 1...Bxc4
        • 2.Qxb7#
      • 1...exf4 ep
        • 2.Qxd3#
      • 1...gxf4 ep
        • 2.Be6#
      • 1...Rb5
        • 2.Qxb5#
      • 1...Ra6
        • 2.Qb5#
      • 1...b6
        • 2.Sxb6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • K(g);OGATEB,S_FLIGHT,XS(G)::QAB(A)
    • R(f);N_GUARD::QAR2(A),XR(f)
    • R(f);N_GUARD::QAR2(A)
    • R(f);N_GUARD,XS(H)::QAR2(A)
  • Tries
    • Try
      • B(F);XP(e)
      • Threat
        • B(F)
      • Vars
        • K(g);OGATEB,S_FLIGHT,XS(G)::QAB(A)
        • R(f);N_GUARD,XS(H)::QAR2(A)
        • R(f);N_GUARD::QAR2(A)
      • Refutation
        • B(b);XS(G)
    • Try
      • Q(A);
      • Threat
        • DUALS(2)
      • Refutation
        • K(g);S_FLIGHT,XS(G)
  • Actual
    • P(B);
    • Threat
      • S(G)
    • Vars
      • K(g);OGATEB,S_FLIGHT,XS(G)::QAB(A)
      • R(f);N_GUARD,XS(H)::QAR2(A)
      • B(b);SBLOCK,XS(G)::QAB(A),XP(h)
      • P(d);EP,N_GUARD,XP(B)::QAR2(A),XB(b)
      • P(e);EP,OGATE,XP(B)::B(F)
      • R(f);N_GUARD::QAR2(A),XR(f)
      • R(f);N_GUARD::QAR2(A)
      • P(h);::S(G),XP(h)
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Developed and maintained by Brian Stephenson.
Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) & CSS/Javascript (jQuery, Bootstrap & DataTables).